Finding the Fourth Proportional to 6,663.52, 9,191.55 and 5,340.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,663.52 : 9,191.55 = 5,340.38 : x
2. Step 2: Convert to fraction form
   6,663.52/9,191.55 = 5,340.38/x
3. Step 3: Cross multiply
   6,663.52x = 9,191.55 × 5,340.38
4. Step 4: Simplify right side
   6,663.52x = 49,086,380.54
5. Step 5: Solve for x
   x = 49,086,380.54/6,663.52
6. Step 6: Final answer
   x = 7,366.44